Coupler for lubricators



Sept. 13, 1938. R P, GL SE 2,129,682

' I COUPLER FOR LUBRICATOFS Filed July '7, 1957 2 Sheets-Sheet 1 Aiio neys Sept. 13, 1938. R, P. GLOSE COUPLER FOR LUBRICATORS 2 Sheets-Sheet 2 Filed July "7, 1937 Inventor Attorneys Patented Sept. 13, 1938 2,129,682

UNITED STATES PATENT OFFICE COUPLER FOR LUBRICATORS Raymond P. Glose, Allentown, Pa. Application July '7, 193 Serial No. 152,440

4 Claims. (Cl. 285-161) This invention appertains to new and useful disposed pins 2|], whereby the coupler can be improvements in couplers such as are used in rotated.

conjunction with the grease gun for connecting It can be seen, that when the coupler isunder the grease line with the valved fitting of the pressure, and attached to the fitting l6, pressure hearing. will be exerted against the follower l0, and the 5 The principal object of the present invention follower ill in turn will force the pee g eleis to-provide a coupler of the character stated e It a a t e upp end of the fitting which, when under pressure,'wi11 effect a, al so that the ribs IE will bear firmly against the in the coupler preventing wasteful escape of the fitting, thus p ev y grease from plubricant, ing between the packing element l4 and the fit- 10 Another important object of the invention is to n The p c element It a adj st itprovide automatic packing means for couplers of self 50 that e rib l5 Will engage the fitting the character stat d, l6 at all points of its circumference. Further- These and various other important objects and more, the end of t p as Well as the pp advantages of the invention will become apparent end of the p in e element It are flared s0 15 to the reader of the following specification. that regardless he position of the packin In th drawings: element, a clear passageway will be afiorded at Figure 1 represents a side elevational view of all times for the'lllbrieant. the coupler shown attached to avalved fitting. A modified vform 0f the nvention is Shown in Figure 2 is alongitudinal sectional view through Figure 5 wherein character reference 5a denotes 20 the structu e shown in Figure 1. the shell which is counterbored so as to define Figure 3 is an end elevational view of the free the Shoulder block. A plug 6a is threadedly engaged into the Figure 4 is b tt plan View of t packing threaded counterbore of the shell 5d and is l t, urgable against the outstanding circumferential 25 Figure 5 i a side elevational View, partly in fiange 22 of the slide body 23 through which the ti d showing a modified f rm of coupler usual lubricant line is attachable at its outer tt d t avalved fitting end. This follower 23 is provided with a bore Referring to the drawings, wherein like extending therethrough and merging with the merals designate like parts it can be seen in concavity 2d at its inner end, which receives the 30 ure 2, that numeral 5 represents a cylindrical convex-Shaped portion 24 0f the p ck ng element shell having internal threads at its upper and Ma, this packing element I la being provided with for receiving the threaded p1ug 1ike extension 5 an opening 25 therethrough and also with an an- Of the adapter 1, which has the port 8 there nular rib [15a for engagement with the upper end through merging with the concavity 9 at the inner of the valved fitting l 35 end ther of Numeral 26 represents a handle having bowed Numeral Ill denotes a follower freely slidable in portions l These bowed Portions are d sthe shell 5 and this has a concavity I! in its lower Posed inwardly to form Pintles engaged into A bore g extends through this f ll m recesses 1n the circumferential flange 29 of the the upper and lower ends of this bore or port plug 40 being flared as denoted bynumeral |3 Obviously, the plug 6a can be fed inwardly The convex upper side f the disc Shaped pack against the flange 2 2 in which instance the foling element l4 fits in the concavity H and the lower 23 is fed inwardly in Snug engagement bottom side of this packing element M has the with the Packing element While the packing annular rib l5 thereon in opposed relation to the element is in turn forced against the fitting 45 upper end of the conventional valved fitting l6 to act as a Sealof a. bearing. This fitting l6 has the usual cross While the foregoing Specification Sets forth the pin n for riding engagement in th bayonet 1 1; invention in specific terms, it is to be understood |8in the. shell 5. that numerous changes in the shape, size, and

It can be seen in Figure 2, that the shell 5 is materials may be resorted to without departing 50 provided with an internal circumferentially exfrom the spirit and scope of the invention as tending shoulder l9 upon which the packing eleclaimed hereinafter. ment M can rest when the coupler is displaced Having described the invention, what is claimed from the fittingv l6. as new is:

The coupler shell 5 is provided with laterally 1. A coupler of the character described comprising a shell, a pressure responsive follower in the shell, a shoulder structure in the shell, and a universally movable packing element interposed between the follower and the said shoulder, said packing element being provided with an annular rib on the valved fitting engaging side thereof.

2. A coupler of the character described comprising a shell, a pressure responsive follower in the shell, a shoulder structure in the shell, and a universally movable packing element interposed between the follower and the said shoulder, said follower being provided with a concavity at its shoulder opposed end, said packing element being provided with a convexed side for riding engagement in the said concavity.

3. A coupler of the character described comprising a shell, a pressure responsive follower in the shell, a shoulder structure in the shell, and a universally movable packing element interposed between the follower and the said shoulder, said follower being provided with a flanged portion, a plug receivable into the said shell and against the said flanged portion for holding the said follower against the packing element.

4. A coupler of the character described comprising a shell, a pressure responsive follower in the shell, a shoulderstructure in the shell, and a universally movable packing element interposed between the follower and the said shoulder, said follower being provided with a flanged portion, a plug receivable into the said shell and against the said flanged portion for holding the said follower against the packing element, and a handle on the said plug whereby the plug can be operated.

RAYMOND P. GLOSE. 

